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imx283--read cpu unique id

Question asked by 志明 李 on Apr 16, 2013
Latest reply on Apr 18, 2013 by Yuri Muhin
Branched to a new discussion

Hello Forum:

Today,I tried to read imx283's cpu unique identifitcation,then i found some registers by reading the imx28 datasheet(chapter 19.4.38&chapter 19.4.39),and i read the register(HW_DIGCTL_CHIPID):

unsigned long reg;

reg = __raw_readl(IO_ADDRESS(DIGCTL_PHYS_ADDR)+0x310);

printk("%s: 0x%x\n", __func__, reg);

It returns 0x28000001,like as described in the manual.


I tried another register(HW_DIGCTL_FSL):

unsigned long reg;

reg = __raw_readl(IO_ADDRESS(DIGCTL_PHYS_ADDR)+0x300);

printk("%s: 0x%x\n", __func__, reg);

ok,it's copyright,returns 65657246.


These  don't seem like a unique identifier,any other idea?

THX

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